The document is in a format suggesting a Church Record.
Extra details from the Pioneer index Victoria
Denomination- Church of England
Parish-St James Melbourne
Fiche 976
It may be complete in that reading left to right it makes sense.
However from July 1853, this is what was expected to appear on a marriage certificate.
From July 1853
Date
Couple's names
Couple's ages
Couple's birthplaces
Previous status
Couple's occupations
Couple's residences
Fathers' names
Fathers' occupations
Groom's mothers name
Bride's mothers name
It is a bit tricky as they were married on
sixth July 1853

Sue